ALL meanings of arduousness
ar·du·ous
A a - adjective arduousness requiring or using much energy and vigor; strenuous: making an arduous effort. 1
- adjective arduousness hard to climb; steep: an arduous path up the hill. 1
- adjective arduousness hard to endure; full of hardships; severe: an arduous winter. 1
- noun arduousness The state of being arduous. 1
- adjective arduousness requiring great exertion; laborious; difficult: an arduous undertaking. 1